wp-ecommerce

Hi am pretty new to wordpress.

I installed wp-ecommerce plugin
http://cemtec.quicksites.co.za/?page_id=109
When I goto this page it says “Sorry, no posts matched your criteria.”
Instead of your shopping cart.

When logged in as admin on wordpress this seems to work. So this must be some kind of permission thing. I am not sure where to fix this? Anybody have any clues?